/**
 * Copyright 2011 Honeywell Federal Manufacturing & Technologies, LLC. This material was produced under U.S. Government
 * contract DE-ACO4-01AL66850, Honeywell Federal Manufacturing & Technologies, LLC, (FM&T) with the U. S. Department of
 * Energy for the operation of the Kansas City Plant . The U.S. Government has rights to use, reproduce, and distribute
 * this software.  NEITHER THE GOVERNMENT NOR Honeywell Federal Manufacturing & Technologies, LLC, MAKES ANY WARRANTY,
 * EXPRESS OR IMPLIED, OR ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE.  If software is modified to produce
 * derivative works, such modified software should be clearly marked, so as not to confuse it with the version available
 * from FM&T.
 *
 * Additionally, this program is free software; you can redistribute it and/or modify it under the terms of the GNU
 * General Public License Version 3 published by the Free Software Foundation. Accordingly, this program is distributed in
 * the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this library.
 * If not, see http://www.gnu.org/licenses/.
 */
package org.braintrain.services.util.domContentWorkers;

import org.braintrain.domain.Navigation;
import org.braintrain.domain.ResourceReference;
import org.braintrain.services.util.DOMContentParser;
import org.braintrain.tapestry.encoders.ContentServiceEncoder;

public class DirectContentLinkValidator extends AbstractNullCheckingAttributeValidator  {
    
    private DOMContentParser domParser;

    public DirectContentLinkValidator(DOMContentParser domParser)
    {
        this.domParser = domParser;
    }
    /**
     * Determines if a the value of a node fits the 'Direct Page Path' format, if the
     * linked page exists in the database:
     * 
     * Direct Page Path format : 'startTooltip(/directPages/...)'
     * 
     * @param nodeValue
     */
    protected void processAttributeValue(String nodeValue)
    {

        int javascriptIndex = nodeValue.indexOf("startTooltip(");
        int parensIndex = nodeValue.indexOf(')');
        int mediaIndex = nodeValue.indexOf(ContentServiceEncoder.DIRECT_PAGE_PATH + "/");
        
        if(javascriptIndex == 0 && mediaIndex != -1 && parensIndex + 1 == nodeValue.length())
        {
            Object[] params = domParser.getDataSqueezer().unsqueeze(ContentServiceEncoder.parseDirectPagePath(nodeValue));
            
            Navigation navigation = null;
            
            if(params != null && params.length > 0 && params[0] instanceof Long)   
            {
                navigation = domParser.getGenericDAO().getById(Navigation.class, (Long)params[0]);
                
            }
        
            if(navigation != null)
            {
                domParser.getReferences().add(new ResourceReference(navigation));
            }
        }
    }
}
